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Finding the Fourth Proportional to 141,468.76, 195,233.07 and 77,808.88

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Solution

The fourth proportional to 141,468.76, 195,233.07 and 77,808.88 is: 107,379.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,468.76 : 195,233.07 = 77,808.88 : x
  2. Step 2: Convert to fraction form
    141,468.76/195,233.07 = 77,808.88/x
  3. Step 3: Cross multiply
    141,468.76x = 195,233.07 × 77,808.88
  4. Step 4: Simplify right side
    141,468.76x = 15,190,866,515.66
  5. Step 5: Solve for x
    x = 15,190,866,515.66/141,468.76
  6. Step 6: Final answer
    x = 107,379.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.